Metal weather strip



May`12, 1925.' y 1,537,275

o. P. WALLACE METAL WEATHER STRIP Filedse'pi. 19, 1925 i .satana-s earroe. Y

foRIEN P. WALLACE, or srousmssounr, AssIsNoR, BY DIRECT AND'MEsNnf-As- SiIGrlflMll]NTS,'v OF. ONE-THIRD TO DOMINICK.KULAGE,

t ONE- "METAIJ'WEATHER STRIP.

ffApplrcation lediseptember To lall tU/Lom-iz'tvmd/ concern.'

f' Be '-ity knownfthat 1,-? @RIEN P. VALLACE, Va. 4citizen 'ofi-theiUnitedfStates. 'Jresiding at the city of St. Louis. y `souri ,i fln "ve -inv'entedcertain new and useful Improvements in Metal leather "Strips,f of which the following isfa' specification.

This invention relates to weather-strips, and pertains more particularly to improvements in weather-strips especially applicable to window frames provided with sliding sashes.

Heretofore weather strips installed in new houses have ceased to function properly aft* er they have been in use for some time, because of undue shrinkage of the window sashes. To remedy this defect is the principal object to this invention.

Another object is to provide greater depth for theV meeting contacting surfaces, and thereby considerably increase the impedance to the How of airbetween the said ysurfaces. Other objects and advantages will be apparent as theA description proceeds.

lin the accompanying drawii'igs forming part of this specification, in which like numbers of reference denote like parts wherever they occur, Y

Figure 1 is a horizontal sectional view 011 the line 1-1 of Figure 2, of a window frame p and sash to which the weather-strip of this invention has been applied; and

Figure 2 is' a fragmentary vertical sectional view taken on the irregular line2-2 of Figure 1,

A window frame 1 has the` conventional parting bead 2 between the lo\.1'er-orim1ersash runway 3 and the outersash runways et, and also has the inside bead 5 for confiningthe sash G within proper bounds. The window sash 6 is of the usual type and contains the glass pane 7V secured to the sash 6 by the bead 8. L

In equippinga Window with this invention, the parting bead 2 is removed and part of its side 9 and shoulders 12,V for the reception of the weather-strip 13 of substantially Z-shaped cross-section, and preferably of metal. The

its rear are planed away to form an L-shaped seat 11, terminated byv 19, 1923. Serial No. '663,582.

linsidebeadfis' removed for planinga recess era'blyfoffsheet bronze. The sash@ is 'then zremoved for cutting a deep andnarrow-lon- .gitudinall slot1'1'6:=in eachof its narrow sides 1.7, approximately three-eighths `of an incl from the out-side face 18 of the sash 6, and planing' a recess 19 of less depth in each of its narrow sides 17 between the slot 16 and the outsidefface 18 of the sash 6. Another weather-strip 20, of L-shaped cross-section,

and preferably of metal. has a wide flange 21 and a, narrow flange 22. The wide flange 21 is of such thickness as to make a slidable but suiiiciently air tight fit 'in the slot 16. Flange 21 is provided with transverse slots 23. Flange 21 is inserted in the slot 16, so that iange 22 extends outwardly, andpins 24; are driven through the frame across the slot 1G and through the slots 23. The pins 24.- cooperating with the slots 23 permit lateral movement of the strip 20, but prevent longitudinal movement of the said strip in the slot 1G. Parting bead 2 and strip 13 are next placed in position in the frame 1. the flange 25 and the web 2G of strip 13 being clamped and held between the bead 2 and the frame 1, the bead 2 being fastened in the usual manner. In this position flange 27 of'strip 13 is parallel to and spaced from the bottom of runway 3. lVindow sash 6 is now replaced, care being taken that flange 22 passes betweenthe bottom of runway 3 and the flange 27. Strip is now inserted with its edge portion 28 passing between the flange 22.and the runway side 3. has the portion 29 adjoining its edge 30 bent at a slight angle at 31, so that when bead 5 is fastened to the frame 1 in the usual manner, the portion 29 of the strip 15 is clamped in its seat let between bead 5 and frame 1, and the edge portion 28 brought to bear resiliently against the flange 22 of the weather-strip 20, and forces the flange against the flange 27.

y The usual type of weather-strip 32 may be used at the sill 33 of the frame 1, and fits in the usual slot 34 in the bottom 35 of the window-sash 6. .As shown the strip 32 is Strip' #14011 the innerhalf'of'itsrearlto provide a l seatlfor the resilient vstrip 15,'wh1ch 4is pret'- thinner than the slot 84, and at its ond portion 36 it makes what is merely a line contact with the sides 3T of the slot 34. On the sides of the window, however, such a strip would leak with too mueh shrinkage or" the window sash.

lt is manifest, however, that no such leakage can occur with the improved type of weather-strip herein described, since all contaeting,` surfaces are of large area or great depth, and furthermore the lateral movement of the strip 20 in the sash G takes care of any undue shrinkage.

I claini:

l. The combination with a window-traine and a sash havinga longitudinal slot in its narrow side, of a weather-strip having;v an L- shaped cross-section, one flange of which is slidahie laterally in the said slot, and the other flange of which is spaced from the said narrow side, a second weathenstrip secured to the said windowrame and situated hetween the vsaid narrow side and the said other flange, and resilient ineans for pressing the said other flange against the said window-'traine strip.

2. The combination with a window-frame and a sash havinga longitudinal slot in its narrow side, of a weather-strip having' an l..- shaped cross-section, one flange of' which is slidahle laterally in the said slot, and the other flange of which is spaced frein the said narrow side, a second weather-strip secured to the said window-frame and'situated between the said narrow side and the said other flange, and a resilient strip secured to the window frame and pressing` against the said other flange of the said Lshaped weather-strip.

ln testimony whereof I hereunto affix iny signature.

einen r. WALLACE. 

